Topological aspects of cavity‐induced degeneracies in polyatomic molecules

Conical intersections are degeneracies between multidimensional potential energy surfaces of molecular systems. It is well known that, besides these phenomena significantly modify the spectroscopic and dynamical properties molecules, their presence in a system has noticeable topological implications, as well. Such consequence appearance or geometric phase. not only occur nature but they can also be created by light. This either classical laser light quantum an optical cavity. As showcase example, placing formaldehyde (H2CO) molecule into cavity, (e.g., Berry phase) emerging light-induced conical intersection have been investigated for different cavity parameters geometrical arrangements.